So easy a fancy webpage could do it. https://gchq.github.io/CyberChef/ https://gchq.github.io/CyberChef/ I mean, it's from gchq so it is a bit fancy. It's got

So easy a fancy webpage could do it. https://gchq.github.io/CyberChef/ https://gchq.github.io/CyberChef/ I mean, it's from gchq so it is a bit fancy. It's got a "magic" option! Cool thing being you can download it and run it yourself locally in your browser, no comms required.